The technological feasibility of applying electrophoretic deposition to solid oxide fuel cells was investigated by making small tubular cathode substrates and cathode/electrolyte/anode multilayers. A small tube made of La x MnO 3 ± d ( LM ) , ( La 0.7 Sr 0.3 ) 0.9 MnO 3 ± d , or ( La 0.85 Sr 0.15 ) 0.95 MnO 3 ± d was obtained by depositing lanthanum manganite on graphite substrate from an iodine added acetone bath or an isopropanol bath. The graphite was oxidized and removed during sintering, resulting in a tubular LM with one end closed. A multilayer consisting of porous LM/dense YSZ/porous NiO‐YSZ was obtained by deposition of yttria‐stabilized zirconia on presintered LM and subsequent codeposition of NiCFO 3 powder and YSZ powder on the YSZ‐deposited LM. Finally, this LM(presintered)/YSZ(as‐deposited)/ NiCO 3 ‐YSZ(as‐deposited) layer was cofired.
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Negishi et al. (2000) studied this question.